CN103871496A - Integrated reactor roof structure for pressurized water reactor - Google Patents
Integrated reactor roof structure for pressurized water reactor Download PDFInfo
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- CN103871496A CN103871496A CN201210537125.9A CN201210537125A CN103871496A CN 103871496 A CN103871496 A CN 103871496A CN 201210537125 A CN201210537125 A CN 201210537125A CN 103871496 A CN103871496 A CN 103871496A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The present invention relates to a pressurized water reactor nuclear power plant reactor roof structure, which comprises a pressure vessel head cover, wherein the upper portion of the pressure vessel head cover is provided with an enclosing cylinder, the upper end inside the enclosing cylinder is provided with a cooling enclosing plate, the cooling enclosing plate is provided with a cooling wind pipe, the upper portion of the enclosing cylinder is respectively provided with a wind inlet and a wind outlet, the wind inlet and the wind outlet are connected with the cooling wind pipe in the internal, the top portion of the enclosing cylinder is provided with an anti-seismic assembly, and the anti-seismic assembly is provided with an electric cable bracket, an electric cable bridge assembly and a head cover lifting tool. The pressurized water reactor nuclear power plant reactor roof structure has the following advantages that: equipment function integrating and structure integrating are achieved, radiation shielding can be provided for operators, rapid lifting isolation/installation can be rapidly achieved, and requirements of the third-generation nuclear power technology on safety, advancement and economy are reflected.
Description
Technical field
The invention belongs to a kind of pressurized-water reactor nuclear power plant reactor roof construction, be specifically related to a kind of integrated heap roof construction that is applicable to presurized water reactor.
Background technology
Reactor roof construction is one of vitals of reactor, and its function mainly comprises: under earthquake conditions, limit the excessive deformation of driving mechanism (CRDM), guarantee the integrality of its function; Take away by cooling-air the heat that CRDM coil produces, to guarantee that its temperature is no more than limit value; All cables of PRV head package are guided to the civil interface place of regulation; Install, reload and when maintenance and ring hang and be connected whole heap roof construction is hung (from) reactor pressure vessel.Simultaneously, while operation as open/buckle closure such as reactor refuling/maintenance etc., the main equipment that must operate, heap roof construction should be able to be realized easy, dismounting fast, and provide necessary radiation protection for operating personnel, and then save reactor refuling or maintenance operation time and reduce the suffered irradiation dose of operating personnel, from improving security and the economy of reactor.
At present, presurized water reactor heap roof construction mainly contains two kinds both at home and abroad: distributing heap roof construction and integrated heap roof construction.Distributing heap roof construction is all the heap roof constructions that adopt based on French M310 heap type, to be French AREVA NP company design and carry out application the eighties in last century this structure, although it is simple in structure, but equipment component must be equipped with in reactor building, the operation such as reactor refuling or maintenance spended time is longer, and there is no personnel's Radiation Exposure, thereby cause the suffered irradiation dose of operating personnel higher, security and economy are poor.And in recent years, external many developed countries are guaranteeing to pile on the basis of roof construction inherent function requirement, all it to be carried out to more deep design studies, and obtained numerous scientific payoffss, part scientific payoffs has also been put in actual engineering application.Can find out from development trend, the design of heap roof construction is gradually to integrated, integrated future development, main target is minimizing field installation time, shortens the running time on reactor refuling/maintenance period heap top, reduces the suffered irradiation dose of operating personnel etc., thus security and the economy of raising reactor.The integrated heap roof construction of AP1000 of US Westinghouse company is exactly wherein a kind of, it has had advantages of integrated heap roof construction, but also come with some shortcomings, mainly comprise: four blower fans are placed on heap roof construction, bring very large vibrations harm not only to heap roof construction, also increase the center of gravity of heap roof construction simultaneously, be unfavorable for piling the stable of roof construction, the inconvenience such as the maintain and replace of blower fan in addition; Due to the restriction of structure, reactor can not use monoblock type bolt stretching machine, can only use Split type bolt drawing machine, and with respect to Split type bolt drawing machine, monoblock type bolt stretching machine can greatly reduce the time of heap roof construction lifting operation, and security and the economy of reactor is provided; Stack top cable is placed in to top to be enclosed cylinder and around brings very large difficulty to the maintain and replace of cable etc.Therefore at present both at home and abroad presurized water reactor heap roof construction there is no method and meets the requirement of reactor to security and economy completely.
Summary of the invention
The object of this invention is to provide a kind of integrated heap roof construction that is applicable to presurized water reactor, it can meet the functional requirement of presurized water reactor heap roof construction, have again simultaneously can use monoblock type bolt stretching machine, can external cooling system, realize functions of the equipments integrated and structure integrated, can provide radiation shield for operating personnel, realize the integrated heap roof construction of features such as hanging fast/install.
The present invention realizes like this, a kind of integrated heap roof construction that is applicable to presurized water reactor, it comprises pressure vessels top cover, the top of pressure vessels top cover is provided with encloses cylinder, the upper end of enclosing the inside of cylinder is provided with cooling coaming plate, cooling coaming plate is provided with cooling duct, enclose cylinder on have the air inlet that encloses on cylinder and enclose the air outlet on cylinder, air inlet is connected with inner cooling duct with the air outlet enclosing on cylinder, the top of enclosing cylinder is provided with antidetonation assembly, and antidetonation assembly is provided with Electric cable tray assembly and top cover suspender.
Described suspender comprises lower suspension rod and suspender superstructure, lower suspension rod lower end is connected with the hanger on pressure vessels top cover, upper end and antidetonation ring are connected and fixed, be connected by bearing pin with top hanger structure simultaneously, suspender superstructure comprises the triangular supports of the sheet with rib being made up of crossbeam, between crossbeam, is fixed together by strengthening gusset.
The junction of described crossbeam is also fixed with U-shaped hoist block.
Advantage of the present invention is that it mainly forms by enclosing cylinder, cooling coaming plate, cooling duct, antidetonation assembly, Electric cable tray assembly and top cover suspender etc.This integrated heap roof construction can meet the functional requirement of heap roof construction, simultaneously this heap roof construction simple in structure, manufacture more for convenience, external cooling system, can use monoblock type bolt stretching machine, realize integrated and structure integrated of functions of the equipments, can, for operating personnel provide radiation shield, can realize fast and hang/install, embody generation Ⅲ nuclear power technology to security, advance and economy requirement.
Accompanying drawing explanation
Fig. 1 is integrated heap roof construction schematic diagram of the present invention;
Fig. 2 is top cover suspender superstructure schematic diagram.
In figure: 1 pressure vessels top cover, 2 times suspension rods, 3 cooling coaming plates, 4 enclose cylinder, and 5 enclose the air inlet on cylinder, 6 antidetonation assemblies, 7 top cover suspenders, 8 Electric cable tray assemblies, 9 enclose the air outlet on cylinder, 10 cooling ducts, 11 crossbeams, 12 strengthen gusset, 13U type hoist block.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail:
As shown in Figure 1, it comprises hemispheric pressure vessels top cover 1 a kind of integrated heap roof construction that is applicable to presurized water reactor, the top of pressure vessels top cover 1 be fixedly connected with tubular enclose cylinder 4, the middle part of enclosing the inside of cylinder 4 is fixed with cooling coaming plate 3, on cooling coaming plate 3, be fixed with cooling duct 10, the upper end of enclosing cylinder 4 has the air inlet 5 enclosing on cylinder and encloses the air outlet 9 on cylinder, air inlet 5 is connected with inner cooling duct 10 with the air outlet 9 enclosing on cylinder, the top of enclosing cylinder 4 is fixed with antidetonation assembly 6, on antidetonation assembly 6, be fixed with Electric cable tray assembly 8, the upper end of Electric cable tray assembly 8 is provided with top cover suspender 7, as shown in Figure 2, top cover suspender 7 is specific purpose tools of the integrated heap roof construction of handling, it comprises lower suspension rod 2 and suspender superstructure.Lower suspension rod 2 lower ends are connected with the hanger on pressure vessels top cover 1 by bearing pin, upper end and antidetonation ring are connected and fixed, be connected by bearing pin with top hanger structure simultaneously, suspender superstructure is the triangular supports of a sheet with rib being made up of crossbeam 11, between crossbeam 11, be fixed together by strengthening gusset 12, the junction of crossbeam 11 is also fixed with U-shaped hoist block 13.During reactor operation and shutdown, top cover suspender 7 is installed on heap roof construction and does not need dismounting, thereby has guaranteed lift up rapidly and the installation of reactor refuling/maintenance period heap roof construction.
Wherein, enclosing cylinder 4 is agent structures of whole integrated heap roof construction, and the most of parts in heap top are all using it as architecture basics, both as the part of CRDM antidetonation system, again as the border of CRDM cooling system, simultaneously also as the radiation screen shield structure of integrated heap roof construction.Enclose cylinder 4 lower ends and be provided with joint flange and flange reinforcing ribs plate, the brace table on joint flange and pressure vessels top cover 1 is bolted, and is fixed on pressure vessels top cover thereby will enclose cylinder 4.Be provided with action pane in the lower end of enclosing cylinder 4, for operating piling interior measurement hermetically-sealed construction and heat-insulation layer.Each window place is provided with the shield door that can close and lock, and shield door is closed and locked during normal reactor operation.Be provided with air inlet 5 and air outlet 9 in the upper end of enclosing cylinder 4, each air inlet 5 places arrange by the shield door that can close and lock, and shield door is normally open during normal reactor operation.Air outlet 5 places are provided with joint flange, to be connected with outside airduct.
Enclose cylinder 4 in the axial direction the connected unit terrace from pressure vessels top cover 1 extend to the upper end of CRDM, be provided with supporting ring flat-plate in the inner side of enclosing cylinder 4 middle parts, so that fixing and support cooling coaming plate 3 and cooling duct 10.Enclose cylinder 4 and can be divided into two sections or three sections, between every section, be connected and fixed with flange bolt.
Be provided with cooling coaming plate 3 and cooling duct 10 enclosing cylinder 4 inner corresponding CRDM solenoid height and positions, Main Function is the cooling air channel forming from the top down more upwards, CRDM is carried out cooling uniformly.Cooling coaming plate 3 is mainly that CRDM solenoid is surrounded, and forms uniform cooling air channel; And cooling duct 10 is mainly to realize cooling air to draw equably to enclose an air outlet 9 places, encloses corresponding cooling duct 10 upper center positions on cylinder 4 and have air outlet 9.Enclose cylinder 4, cooling coaming plate 3, cooling duct 10 and external ventilation equipment and formed CRDM cooling system.Cooling air is entered and is enclosed cylinder 4 by the cooling air inlet 5 that encloses cylinder 4 upper ends, the CRDM electromagnetic coil assembly region forming through cooling coaming plate 3 enters CRDM lower end, then along cooling coaming plate 3 with enclose the gap of cylinder between 4 and enter cooling duct 10, after evenly mixing, cooling duct arrives air outlet 9, enter again external refrigeration airduct, thereby enter in CRDM external ventilation system, realization is cooling to CRDM's.
Electric cable tray assembly 8 is made up of upper strata cable tray, lower floor's cable tray, cable bridge bearing, upper strata cable bridge and lower floor's cable bridge.For stack top cable is directed to civil engineering cable connection panel place, cable is fixed simultaneously.Levels cable tray is connected and fixed by bearing, and fixes with cable bridge bearing; Levels cable bridge connects by support bar, when normal reactor operation, is positioned at up and down on civil engineering platform, and during shutdown works such as reloading/keep in repair, levels cable bridge overturns and is fixed on vertical position around cable bridge bearing.
During normal reactor operation, levels cable bridge is positioned on reactor pit civil engineering platform, and the air outlet 9 enclosing on cylinder 4 is connected with external refrigeration system airduct, and top cover suspender 7 is positioned on heap roof construction.And in the time of reactor refuling/shutdown works such as maintenance, levels cable bridge is overturn and be fixed on vertical position, remove external refrigeration system airduct, suspension ring are connected with the U-shaped hoist block 13 on top cover suspender 7 and heap roof construction can be hung to reactor.
Claims (3)
1. one kind is applicable to the integrated heap roof construction of presurized water reactor, it is characterized in that: it comprises pressure vessels top cover (1), the top of pressure vessels top cover (1) is provided with encloses cylinder (4), the upper end of enclosing the inside of cylinder (4) is provided with cooling coaming plate (3), cooling coaming plate (3) is provided with cooling duct (10), enclose cylinder (4) on have the air inlet (5) enclosing on cylinder and enclose the air outlet (9) on cylinder, air inlet (5) is connected with inner cooling duct (10) with the air outlet (9) enclosing on cylinder, the top of enclosing cylinder (4) is provided with antidetonation assembly (6), antidetonation assembly (6) is provided with Electric cable tray assembly (8) and top cover suspender (7).
2. a kind of integrated heap roof construction that is applicable to presurized water reactor as claimed in claim 1, it is characterized in that: described suspender (7) comprises lower suspension rod (2) and suspender superstructure, lower suspension rod (2) lower end is connected with the hanger on pressure vessels top cover, upper end and antidetonation ring are connected and fixed, be connected by bearing pin with top hanger structure simultaneously, suspender superstructure comprises the triangular supports of the sheet with rib being made up of crossbeam (11), between crossbeam (11), is fixed together by strengthening gusset (12).
3. a kind of integrated heap roof construction that is applicable to presurized water reactor as claimed in claim 2, is characterized in that: the junction of described crossbeam (11) is also fixed with U-shaped hoist block (13).
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| CN201210537125.9A CN103871496B (en) | 2012-12-13 | 2012-12-13 | A kind of integrated heap roof construction suitable for presurized water reactor |
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| CN201210537125.9A CN103871496B (en) | 2012-12-13 | 2012-12-13 | A kind of integrated heap roof construction suitable for presurized water reactor |
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| CN103871496A true CN103871496A (en) | 2014-06-18 |
| CN103871496B CN103871496B (en) | 2017-07-18 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332191A (en) * | 2014-11-20 | 2015-02-04 | 中广核工程有限公司 | Special mounting rack and mounting method for top cover assembly of reactor of nuclear power station |
| CN104766641A (en) * | 2015-03-20 | 2015-07-08 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Civilian nucleus top cover tube base cold installation and turnover device |
| CN105097054A (en) * | 2015-09-16 | 2015-11-25 | 上海核工程研究设计院 | Integrated top cover applicable to pressurized water reactor nuclear power plant |
| CN105369929A (en) * | 2014-08-08 | 2016-03-02 | 韩国电力技术株式会社 | Anti-seismic appratus for control element drive mechanism |
| CN105679383A (en) * | 2016-03-25 | 2016-06-15 | 上海核工程研究设计院 | Nuclear power integral top cover module |
| CN105788664A (en) * | 2016-05-06 | 2016-07-20 | 中国核动力研究设计院 | Pressurized-water nuclear reactor structure |
| CN105957560A (en) * | 2016-07-05 | 2016-09-21 | 上海核工程研究设计院 | Reactor body structure of reactor of pressurized water reactor nuclear power plant |
| CN108039211A (en) * | 2017-12-08 | 2018-05-15 | 中国核动力研究设计院 | Barricade in presurized water reactor integration heap top and the heap top |
| CN109872827A (en) * | 2019-03-11 | 2019-06-11 | 中国核动力研究设计院 | A kind of barrel-type integration heap roof construction suitable for high temperature resistant driving mechanism |
| CN109920563A (en) * | 2019-03-11 | 2019-06-21 | 中国核动力研究设计院 | A kind of truss-like integration heap roof construction suitable for high temperature resistant driving mechanism |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369929A (en) * | 2014-08-08 | 2016-03-02 | 韩国电力技术株式会社 | Anti-seismic appratus for control element drive mechanism |
| US9847146B2 (en) | 2014-08-08 | 2017-12-19 | Kepco Engineering & Construction Company, Inc. | Anti-seismic apparatus for control element drive mechanisms |
| CN105369929B (en) * | 2014-08-08 | 2018-04-10 | 韩国电力技术株式会社 | Antishock device for control element drive mechanism |
| CN104332191A (en) * | 2014-11-20 | 2015-02-04 | 中广核工程有限公司 | Special mounting rack and mounting method for top cover assembly of reactor of nuclear power station |
| CN104766641A (en) * | 2015-03-20 | 2015-07-08 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Civilian nucleus top cover tube base cold installation and turnover device |
| CN105097054A (en) * | 2015-09-16 | 2015-11-25 | 上海核工程研究设计院 | Integrated top cover applicable to pressurized water reactor nuclear power plant |
| CN105679383B (en) * | 2016-03-25 | 2020-08-11 | 上海核工程研究设计院 | Nuclear power integration top cap module |
| CN105679383A (en) * | 2016-03-25 | 2016-06-15 | 上海核工程研究设计院 | Nuclear power integral top cover module |
| CN105788664A (en) * | 2016-05-06 | 2016-07-20 | 中国核动力研究设计院 | Pressurized-water nuclear reactor structure |
| CN105957560A (en) * | 2016-07-05 | 2016-09-21 | 上海核工程研究设计院 | Reactor body structure of reactor of pressurized water reactor nuclear power plant |
| CN108039211A (en) * | 2017-12-08 | 2018-05-15 | 中国核动力研究设计院 | Barricade in presurized water reactor integration heap top and the heap top |
| CN109872827A (en) * | 2019-03-11 | 2019-06-11 | 中国核动力研究设计院 | A kind of barrel-type integration heap roof construction suitable for high temperature resistant driving mechanism |
| CN109920563A (en) * | 2019-03-11 | 2019-06-21 | 中国核动力研究设计院 | A kind of truss-like integration heap roof construction suitable for high temperature resistant driving mechanism |
| CN109920563B (en) * | 2019-03-11 | 2022-06-10 | 中国核动力研究设计院 | Truss type integrated pile top structure suitable for high-temperature-resistant driving mechanism |
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